Seven Navica - Subsea 7
Seven Navica - Subsea 7
Seven Navica - Subsea 7
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<strong>Seven</strong><br />
<strong>Navica</strong><br />
Type:<br />
Pipelay<br />
Classification:<br />
DNV, 1A1, SF, DYNPOS<br />
AUTR HL (2.8), DK+,<br />
HELDK-S<br />
The <strong>Seven</strong> <strong>Navica</strong> is a pipelay vessel<br />
capable of installing both rigid and<br />
flexible products in water depths of up<br />
to 2,000m, with a top tension capacity<br />
of 205t.<br />
• Length 109m x breadth 22m<br />
• 60t offshore crane<br />
• 2,200t main deck mounted storage and deployment reel<br />
• 2-inch to 16-inch diameter rigid pipeline<br />
• An optional 250t piggyback reel can be fitted as required<br />
seabed-to-surface
<strong>Seven</strong> <strong>Navica</strong><br />
January 2012<br />
General Information<br />
Classification<br />
DNV, 1A1, SF, DYNPOS AUTR<br />
HL (2.8), DK+, HELDK-S<br />
Built Aker-Brattvaag, Norway (1999)<br />
Flag State Authority Isle of Man Government<br />
Port of Registry<br />
Douglas<br />
Dimensions<br />
Overall Length 108.53m<br />
Breadth 22.00m<br />
Depth (main deck) 9.00m<br />
Draught (summer) 7.165m<br />
Draught (tropical) 7.341m<br />
Deadweight<br />
9560t<br />
Gross Tonnage 6,083t<br />
Net Tonnage 1,825t<br />
Manoeuvring and Propulsion Systems<br />
Main Engines / Generators 2 x 2,700kW (Diesel Electric)<br />
2 x 3,600kW (Diesel Electric)<br />
Main Propulsion<br />
2 x 3,000kW contra rotating<br />
azimuth thrusters (Aquamaster)<br />
Tunnel Thrusters (bow) 2 x 1,300kW (Kamewa)<br />
Azimuth Thruster (bow) 1 x 1,200kW (Aquamaster<br />
retractable)<br />
Dynamic Positioning Systems<br />
DP Classification<br />
DYNPOS AUTR (Class II)<br />
ERN Rating 99.99.99<br />
DP System Kongsberg Simrad SDP 22<br />
Reference Systems 3 x DGPS<br />
2 x HiPAP<br />
2 x fanbeam<br />
1 x tautwire<br />
Speed / Consumptions<br />
Speed<br />
DP Operations<br />
Tank Capacities (100%)<br />
Fuel Oil 2,683m 3<br />
Fresh Water 1,218m 3<br />
Ballast Water 2,203m 3<br />
Lub. Oil 40.4m 3<br />
Cargo Deck<br />
Deck Area (main deck) 300m 2<br />
Deck Area (mezzanine deck) 180m 2<br />
Deck Strength (main deck) 10t/m 2<br />
12 knots at 20t/per day<br />
10t/per day<br />
Deck Cranes<br />
Main Deck Crane<br />
(Main Line)<br />
60t at 18m (double fall)<br />
30t at 29m (single fall)<br />
The main deck crane (TTS knuckle boom) is certified for man<br />
riding operations up to 2.5t. The vessel has a man riding basket<br />
suitable for 1.25t man riding operations.<br />
The main deck crane is certified for Ship to Ship Transfers<br />
(maximum 15t).<br />
Auxiliary Deck Crane I<br />
Auxiliary Deck Crane II<br />
3t<br />
3t<br />
ROV Systems<br />
The vessel is not normally fitted with an ROV system, however<br />
this can be installed as required.<br />
Pipelay Systems<br />
The vessel is fitted with one 2,200t (approx - depending on<br />
overall vessel payload) main deck mounted storage and<br />
deployment reel. An optional piggyback reel can be fitted<br />
as required. A lay ramp system is permanently installed for<br />
deployment of a range of products at varying lay angles from<br />
23 o to 90 o . The lay ramp system comprises of a guide chute,<br />
piggyback chute, pipe straightener, 205t tensioner, hold back<br />
clamp, roller box, two abandonment and recovery sheaves and<br />
two ramp elevators. One 250t and one 50t abandonment and<br />
recovery systems are provided.<br />
Accommodation<br />
Double 31<br />
Single 22<br />
Total beds 84<br />
POB is restricted to 72 due to lifeboat capacity<br />
Helideck<br />
The vessel is fitted with an approved and certified helideck. The<br />
helideck has a D value of 19 and is approved for Super Puma<br />
helicopter operations (9.3t).<br />
Communication Systems<br />
The vessel is fitted with Inmarsat B and KU Band systems. The<br />
KU Band system has the option to be converted to C Band as<br />
operational requirements demand.<br />
www.subsea7.com<br />
© <strong>Subsea</strong> 7, 2012. Information correct at time of going to press.